一种基于Costas环的BPSK解调设计

Design of a BPSK Demodulator Based on Costas Loop

设计了一种基于软件无线电思想的中频数字化接收机系统,该系统由数据采集模块、数字下变频(DDC)模块和数字解调模块构成。文中重点研究了基于Costas环的BPSK相干解调,并介绍了载波同步及BPSK解调的工作流程图,最后通过Simulink对BPSK解调原理进行了仿真验证。

This paper designs a digital IF receiver system based on software radio.The system is composed of data acquisition module,digital down conversion module and digital demodulation module.This paper mainly discusses the BPSK coherent demodulation based on Costas loop,and introduces the software flow chart of carrier synchronization and BPSK demodulation.Finally,Simulink simulation is performed to verify the feasibility of BPSK demodulation.